The Rome Statute of the International Criminal Court (often referred to as the International Criminal Court Statute or the Rome Statute) is the treaty that established the International Criminal Court (ICC). It was adopted at a diplomatic conference in Rome on 17 July 1998and it entered into force on 1 July 2002. As of 6 January 2015, 123 states are party to the statute. Among other things, the statute establishes the court's functions, jurisdiction and structure.
The Rome Statute established four core international crimes: genocide, crimes against humanity, war crimes, and the crime of aggression. Those crimes "shall not be subject to any statute of limitations".Under the Rome Statute, the ICC can only investigate and prosecute the four core international crimes in situations where states are "unable" or "unwilling" to do so themselves. The court has jurisdiction over crimes only if they are committed in the territory of a state party or if they are committed by a national of a state party; an exception to this rule is that the ICC may also have jurisdiction over crimes if its jurisdiction is authorized by the United Nations Security Council.